Bartlett doe



nits-h fates @anni .ffizizy` BARTLETT non, or BOSTON, MASSACHUSETTS. Leners Patenflvo. 73,305, dans January 14, 186s.

IMPROVBD Sass-STOP.

To ALL WHoM 1T MAY CONCERN;

Be it known that I, BARTLETT DOE, of Boston, in the county of Suffolk, and State of Massachusetts, have invented an Improved Sash-Fastener; and I do hereby declare that the following, taken-,in connection with the drawings, which accompany and form part` of-this specification, is a description of my invention, suiiicient to enable those skilled in the art to practise it.

The object of' my invention is thel production of a fastening-catch, to be used with sashes, or other similar sliding bodies, to lock them in their closed position, and to take the place of weights in sustaining them in various open positions.

This fastening is designed as an improvement over others nowin use for a similar purpose, it beingas edcie-nt as the best substitute for pulleys, cords, weights, and lock, and cheaper and .more easily applied than anysuch substitute with which, I am acquainted. A'In the drawings may be seen illustrationsof my improved fastener- A A v A d' Figure 1 showing a portion of a window-sash and sash-frame'with my invention applied thereto, a portion of the sash and frame being in section, to exhibit the parts to advantage, and the fastening-bolt being also shown in section, exhibiting the formation of the bolt and .the arrangement ofthe parts therewith connectedn In this iigurethe parts are shown in the position which they assume when the'sash is locked to its frame.

Figure 2 is a view similar to iig. 1, except that the parts are shown in thc position which they are made to assumewhen the sash is unlocked from its frame, and the bolt being shown in elevation instead of in section. Z

Figure 3 is an end view of the hollowbolt, and

Figure 4-is a view of the spring-link, which connects the lever outside of the sash'tothe bolt within the sash.

The bolt a is a hollow cylinder, with one end closed, exceptso far as it ispierced to permit the connection Vtherewith of-the link b, 4the hollow construction of the bolt permitting the use of a helical spring, c, of considerable length, which spring, acting on both the bolt and the sash, presses the bolt outward, and leaves the outer cylindrical surface of the bolt of considerable length, to steady and guide itin the holo bored for its reception in the sash d. The lever e is fulcrumed at one end, having there a pivot or, pointhy",l which maybe bedded into the sash or in a metal shield, g, which may be bedded upon or intothe sash, the other end of the'lever e being bent outward, so that a hold may be obtained for drawing back the bolt. Between the fulcrumed and the bent ends of lever e a hook, h, is cast with, or isvfixed to the'lever, of such form that the link b-.can be caught theref upon. This link is made of bent wire, with its ends turned back, so as to form hooks, which enter holes or Y depressions in the bolt-end.

The formwhich the link assumes, when removed from the bolt, is seen in iig. 4, and, when placed in the bolt, it is sprung together and passed into thebolt till its hooks catch in the depressions made to receive them. The fastening is readily applied,'no tools othertha'n'those needed for boring the holes, shown in the sash `and sash-frame, being needed for the application of the fastening, which is as applicable to the upper as to the lowerr part ofA a'sash, and two may be placed opposite each other in each half of a sash, in which case the sash is not crowded to one or the other side, and, if the springs are strong enough, the sash may be retained in position by the friction of the bolt-ends on the sash-frame, even without the entrance of the bolt-ends into the holes bored for their reception in the .sash-frame, though, of course, the sash will not be locked except whensaid boltends enter said holes. i v i The lever being located and connected as described, no mortising has to be done in the sash for its reception.

I claim, in combination, the hollow cylindrical bolt and the outside lever,'when,arranged in connection 'with' a helical spring, substantially as and for the purpose specified.

Also, the bent wire link when applied to the hollow bolt and lever, substantially as set forth.

BARTLETT DOE. Witnesses:

J. B. CROSBY, Farmers GoULn. 

